21050 Cornerstone Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 21050 Cornerstone Dr, Walnut, CA 91789 · Last verified August 2026

Property Highlights

Property TypeResidential > Condominium / Townhouse > Condominium
Bedrooms4 Beds
Bathrooms3 Baths
Year BuiltBuilt 2018
Square Footage1,830 sqft Living Area
Lot Size19,947 sqft (0.458 acres)
OccupancyOwner Occupied
Last Sale$764,500 (2018)
Tax Bill$10,598.00 (2025)

Property Details

APN / Parcel Number

Primary APN8720-047-140

Interior

Bedrooms4 Beds
Full Baths3 Baths
Building Area1,830 sqft Living Area

Exterior

Year BuiltBuilt 2018
Effective Year BuiltEffective 2018
Architectural StyleCondo/Apartment Style
Construction TypeWood Construction
Lot Area19,947 sqft (0.458 acres)

Utilities and HVAC

Cooling SystemHVAC Cooling
Heating SystemCentral Heating

Location & Zoning

Street Address21050 CORNERSTONE DR
CityWALNUT
StateCA
Zip91789-2571
Property UsageResidential Property Usage
TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionTR=73294 LOT 44 PH 11 CONDO UNIT 61 (AIRSPACE AND 1/9 INT IN COMMON AREA)
Legal Tract73294
Legal Block2
Legal Lot Number44
JurisdictionLOS ANGELES CA
Minor Civil DivisionEAST SAN GABRIEL VALLEY
Census Blockgroup2
Census Block2011
Census Tract403402

Owner

Source: Los Angeles County records · APN 8720-047-140

Assessment roll updated May 21, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address21050 CORNERSTONE DR, WALNUT, CA 91789-2571
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Dec 12, 2018Grant Deed, Subdivision Related Transfer · Adjustable Rate Mortgage (ARM)
STERLING BANK & TRUST FSB
Dec 12, 2018Quit Claim Deed, Transfer
FNTG BUILDER SERVICES, FNTG BUILDER SVCS

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleDec 12, 2018 · Amount on Record
Deed SaleDec 12, 2018 · Amount on Record
Deed Doc Number20181259545
Last Transfer DateJun 07, 2024
Transfer Doc0000389349
Record RefreshedSep 20, 2026

December 2018: Grant Deed, Subdivision Related Transfer

Document TypeGrant Deed
JurisdictionLOS ANGELES CA
Recording DateDec 12, 2018
Property Address21050 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0001259545
Map ReferenceMB 1390 PG 37-44
Instrument DateNov 29, 2018
Instrument18-1259545
Transaction TypeSubdivision Related Transfer
Record UpdatedSep 22, 2021
Title CompanyFIDELITY NATIONAL TITLE GROU

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address21050 CORNERSTONE DR, WALNUT, CA 91789-2571

Mortgage

Document Number0001259547
DateDec 12, 2018
Instrument18-1259547
Lender
NameSTERLING BANK & TRUST FSB
TypeBank
Agreement
TypeAdjustable Rate Mortgage (ARM)
AmountAmount Recorded
Term361 Months
DueJan 01, 2049
Interest
Rate TypeAdjustable Rate
Rate5.37%
Type Change DateJan 01, 2022
Change FrequencyAnnually
Min Rate At Change4.32%
Max Rate At Change8.37%
Index1-Year LIBOR
Max Rate11.3%

December 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionLOS ANGELES CA
Recording DateDec 12, 2018
Property Address21050 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0001259546
Instrument DateSep 13, 2018
Instrument1259546
Transaction TypeTransfer
Record UpdatedJan 08, 2019
Title CompanyFNTG BUILDER SERVICES, FNTG BUILDER SVCS

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address21050 CORNERSTONE DR WALNUT CA 917892571, WALNUT, CA 91789-2571

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
MunicipalityWalnut City
Unified School DistrictWalnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

YearTax BillAssessed Value
2025$10,598.00 (+7.69%)$852,810 (+4.04%) Land $529,088 Building $323,722
2023$9,841.00 (+2.13%)$819,696 Land $508,544 Building $311,152
2022$9,636.00

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